"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

The most successful MSPs rely on metrics – known as key performance indicators (KPIs) – for making informed decisions that help their businesses thrive, rather than just survive. This eBook provides an overview of the most important KPIs used by top MSPs.

Why don't you use SSL-bridging? You terminate the SSL on the TMG, forward the requests to the Exchange which is also SSL secure but with its own certificate. External clients only access the external URL.

You would use just one certificate on the Exchange.

Create a publishing rule for Activesync and OWA, creating a listener for each with its certificate. If you are feeling adventorous you can use a SAN certificate on the TMG and publish using one listener and 1 IP. You would use the same listener for different publishing rules.